1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kobusy [5.1K]
3 years ago
13

How do scientists build on previous work when developing theories

Chemistry
2 answers:
lana66690 [7]3 years ago
7 0
Scientist first give hypothesis and also they keep working harder
lana66690 [7]3 years ago
3 0

Answer:

Theories are explanations of a natural or social behavior, event, or phenomenon. More formally, a scientific theory is a system of constructs concepts and propositions relationships between those constructs that collectively presents a logical, systematic, and coherent explanation of a phenomenon of interest within some assumptions and boundary conditions. Using a "Hypothises" and the sientific "Method".

You might be interested in
What volume will 50.2 grams of co2 (g) occupy at stp?
Genrish500 [490]
Number of moles of CO2 =
Mass /Ar
= 50.2 / (12 + 32)
1.14 mols

For every 1 mol of gas, there will be
24000 cm^3 of gas

Vol. = 1.14 x 24 dm^3
= 27.36 dm^3
8 0
3 years ago
What is the concentration, in m/v percent, of a solution prepared from 50 g NaCl and 2.5 L of solution?
Serjik [45]
When we convert the given mass in grams and volume in liters to m/v percent, we recall that m/v percent is expressed as grams/100 milliliters. In this case the expression becomes (50 grams/ 2500 L)*(0.1L/100ml), that is equal to 0.002 grams/ 100 mL. Hence the the concentration is equal to 0.2 m/v percent.
4 0
3 years ago
A 35,000 Newton car runs up a hill that is 45.5 meters high in 1.6 seconds. what power did it exert?
Evgesh-ka [11]

Answer:

995.313KW

Explanation:

the explanation is in the picture

please like and Mark as brainliest

7 0
3 years ago
Boyles Law P1V1 = P2V2
arsen [322]

Answer:

A. The balloons will increase to twice their original volume.

Explanation:

Boyle's law states that the pressure exerted on a gas is inversely proportional to the volume occupied by the gas at constant temperature. That is:

P ∝ 1/V

P = k/V

PV = k (constant)

P = pressure, V = volume.

P_1V_1=P_2V_2

Let the initial pressure of the balloon be P, i.e. P_1=P, initial volume be V, i.e. V_1=V. The pressure is then halved, i.e. P_2=\frac{P}{2}

P_1V_1=P_2V_2\\\\P*V=\frac{P}{2} *V_2\\\\V_2=\frac{2*P*V}{P}\\\\V_2=2V

Therefore the balloon volume will increase to twice their original volume.

3 0
3 years ago
What type of bond is NH3?<br> Ionic, Polar covalent, nonpolar covalent, or metallic
laila [671]
Polar covalent because it is 2 nonmetals and the molecule has a net dipole movement.
8 0
3 years ago
Other questions:
  • How many moles is 145 liters of hydrogen gas at STP?
    6·1 answer
  • For the reactionN2(g)+O2(g)?2NO(g)classify each of the following actions by whether it causes a leftward shift, a rightward shif
    15·1 answer
  • A sample of gas occupies 33 mL at -101 degrees Celsius. What volume does the sample occupy at 97degrees celsius? Plz help I have
    8·1 answer
  • What is the molarity of 0.65 mol NaF dissolved in a total volume of 0.50 liters?
    8·1 answer
  • What statement correctly defines dynamic equilibrium
    5·1 answer
  • At 298 K, the osmotic pressure of a glucose solution (C6H12O6 (aq)) is 12.1 atm. Calculate the freezing point of the solution. T
    15·1 answer
  • The density of benzene at 15 °c is 0.8787 g/ml. Calculate the mass of 0.1500 l of benzene at this temperature. Enter your answer
    10·1 answer
  • Express the density 5.6 g/cm3
    10·1 answer
  • The chemical reactions between limestone and acid in the groundwater form. A) geysers B) wetlands C) volcanoes D) sinkholes ​
    8·2 answers
  • True or fase all fossils come from dinosaurs?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!